public class GeneralComparison10 extends BinaryExpression implements Callable
| Modifier and Type | Field and Description |
|---|---|
protected AtomicComparer |
comparer |
protected int |
singletonOperator |
operand0, operand1, operatorEFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, INHERITED_CONTEXT, INSPECTION_CONTEXT, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, NAVIGATION_CONTEXT, NODE_VALUE_CONTEXT, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, W3C_CONSUMING, W3C_FREE_RANGING, W3C_GROUP_CONSUMING, W3C_MOTIONLESS, WATCH_METHOD| Constructor and Description |
|---|
GeneralComparison10(Expression p0,
int op,
Expression p1)
Create a general comparison identifying the two operands and the operator
|
| Modifier and Type | Method and Description |
|---|---|
Sequence |
call(XPathContext context,
Sequence[] arguments)
Evaluate the expression: interface for use by compiled bytecode
|
int |
computeCardinality()
Determine the static cardinality.
|
Expression |
copy()
Copy an expression.
|
boolean |
effectiveBooleanValue(XPathContext context)
Evaluate the expression giving a boolean result
|
BooleanValue |
evaluateItem(XPathContext context)
Evaluate the expression in a given context
|
protected void |
explainExtraAttributes(ExpressionPresenter out)
Add subclass-specific attributes to the expression tree explanation.
|
ItemType |
getItemType(TypeHierarchy th)
Determine the data type of the expression
|
Expression |
optimize(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
Optimize the expression
|
void |
setAtomicComparer(AtomicComparer comparer) |
Expression |
typeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
Type-check the expression
|
computeSpecialProperties, displayOperator, equals, explain, getArguments, getOperands, getOperator, hashCode, isAssociative, isCommutative, isInverse, iterateSubExpressionInfo, iterateSubExpressions, promote, replaceSubExpression, setFlattened, simplify, toStringaddToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, evaluateAsString, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getExpressionCompiler, getExpressionName, getHostLanguage, getImplementationMethod, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getStreamability, getStreamingAdjunct, getSystemId, getSystemId, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setLocationId, staticTypeCheck, suppressValidation, toPattern, toStreamingPattern, typeErrorprotected int singletonOperator
protected AtomicComparer comparer
public GeneralComparison10(Expression p0, int op, Expression p1)
p0 - the left-hand operandop - the operator, as a token returned by the Tokenizer (e.g. Token.LT)p1 - the right-hand operandpublic int computeCardinality()
computeCardinality in class BinaryExpressionStaticProperty.ALLOWS_ZERO_OR_ONE,
StaticProperty.EXACTLY_ONE, StaticProperty.ALLOWS_ONE_OR_MORE,
StaticProperty.ALLOWS_ZERO_OR_MOREpublic Expression typeCheck(ExpressionVisitor visitor, ExpressionVisitor.ContextItemType contextItemType) throws XPathException
typeCheck in class BinaryExpressionvisitor - an expression visitorcontextItemType - the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPEXPathException - if an error is discovered during this phase
(typically a type error)public void setAtomicComparer(AtomicComparer comparer)
public Expression optimize(ExpressionVisitor visitor, ExpressionVisitor.ContextItemType contextItemType) throws XPathException
optimize in class BinaryExpressionvisitor - an expression visitorcontextItemType - the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPEXPathException - if an error is discovered during this phase
(typically a type error)public BooleanValue evaluateItem(XPathContext context) throws XPathException
evaluateItem in class Expressioncontext - the given context for evaluationXPathException - if any dynamic error occurs evaluating the
expressionpublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
call in interface Callablecontext - the dynamic evaluation contextarguments - the values of the arguments, supplied as SequenceIteratorsXPathException - if a dynamic error occurs during the evaluation of the expressionpublic boolean effectiveBooleanValue(XPathContext context) throws XPathException
effectiveBooleanValue in class Expressioncontext - the given context for evaluationXPathException - if any dynamic error occurs evaluating the
expressionpublic Expression copy()
copy in class Expressionpublic ItemType getItemType(TypeHierarchy th)
getItemType in class Expressionth - the type hierarchy cacheprotected void explainExtraAttributes(ExpressionPresenter out)
BinaryExpressionexplainExtraAttributes in class BinaryExpressionout - the output destination for the displayed expression treeCopyright (c) 2004-2013 Saxonica Limited. All rights reserved.